Re: Decode Function in DS

The decode function provides an easier way to write nested ifthenelse functions. In nested ifthenelse functions, you must write nested conditions and ensure that the parentheses are in the correct places, as the following example shows:ifthenelse ((EMPNO = 1), '111',

ifthenelse((EMPNO = 2), '222',

ifthenelse((EMPNO = 3), '333',

ifthenelse((EMPNO = 4), '444',

'NO_ID'))))

In the decode function, you list the conditions, as the following example shows. Therefore, decode is less error prone than nested ifthenelse functions.decode ((EMPNO = 1), '111',

(EMPNO = 2), '222',

(EMPNO = 3), '333',

(EMPNO = 4), '444',

'NO_ID')